Probing the charged Higgs boson at the LHC in the CP-violating type-II 2HDM

TL;DR

This paper investigates the potential for discovering a charged Higgs boson within a CP-violating two-Higgs-doublet model at the LHC, focusing on specific decay channels and current experimental constraints.

Contribution

It provides a detailed phenomenological analysis of the charged Higgs discovery prospects in a CP-violating 2HDM considering recent LHC data and theoretical bounds.

Findings

Identifies viable parameter space consistent with current constraints.

Proposes a search strategy involving bar{b} W^+W^- signature.

Estimates the LHC's sensitivity to the charged Higgs in this model.

Abstract

We present a phenomenological study of a CP-violating two-Higgs-doublet Model with type-II Yukawa couplings at the Large Hadron Collider (LHC). In the light of recent LHC data, we focus on the parameter space that survives the current and past experimental constraints as well as theoretical bounds on the model. Once the phenomenological scenario is set, we analyse the scope of the LHC in exploring this model through the discovery of a charged Higgs boson produced in association with a W boson, with the former decaying into the lightest neutral Higgs and a second W state, altogether yielding a b\bar b W^+W^- signature, of which we exploit the W^+W^- semileptonic decays.